A detailed astronomical diagram illustrating a total lunar eclipse. The top section features a chart showing the moon's path (Path of the center of the shadow) relative to the Earth's shadow and the ecliptic. It includes scales for "Minutes of one degree of a great circle" and "Lunar eclipse digits." Various points are marked: "Immersion point," "Emersion point," and contact points. The center-right of the page features a "General diagram" of the Earth's shadow (Shadow of the Earth) with the moon at immersion, middle, and emersion phases. The left and center-bottom areas contain text and tables within scroll-like borders.

Celestial projection

for the Nuremberg Meridian

clearly presenting all

times of the phases.

There are found, among other things:
Total duration of the eclipse: 3h 54' 36"
Time spent in the Earth's shadow: 1h 26' 0"
Time of incidence: 0h 57' 43"
Magnitude of the eclipse: 20 digits, 56 minutes
which, because of the narrowness of the space, could not be captured
here, but was elicited by calculation.

TOTAL LUNAR ECLIPSE

WITH DURATION,

Year 1750, on the morning of December 13th

Calculation

	h.	'	''
True time of Full Moon, Nuremberg
1750, Dec 13th, a.m.	10.	56.	37.
True place of the Sun ♐	21.	33.	1.
Longitude of the Moon in orbit ♊	21.	33.	1.
True longitude of the Sun	8.	22.	11.
Decreasing northern latitude of the Moon		1.	22.
Semidiameter of the Sun		16.	22.
Horizontal semidiameter of the Moon		16.	32.
Parallax of the Sun			9.
Horizontal parallax of the Moon		60.	44.
Semidiameter of the Earth's shadow		44.	44.
Hourly motion of the Sun		2.	33.
True hourly motion of the Moon		38.	57.
Hourly motion of the Moon from the Sun		36.	24.
Inclination of the Moon's orbital path to the ecliptic		5.	44.
Southern declination of the Sun		23.	11.

Reduction of times to other meridians.

Phase occurs	Berlin	London	Lisbon
	h. ' ''	h. ' ''	h. ' ''
Beginning	8. 4. 23.	6. 37. 3.	5. 51. 3.
6 Digits	8. 23. 36.	6. 56. 16.	6. 10. 16.
Immersion	8. 52. 56.	7. 35. 36.	6. 49. 36.

Emersion	10. 31. 36.	9. 14. 16.	8. 28. 16.
6 Digits	11. 0. 56.	9. 43. 36.	8. 57. 36.
End	11. 20. 23.	10. 3. 3.	9. 17. 3.

Moonset	8. 35.	8. 22.	7. 23.
Magnitude	total obsc.	13 digits	4. 30.
Western phase

Times and phases from projection under the Nuremberg Meridian.

Dig:	Time:	Surface spots	Dig:	Time:	Surface spots
	h. ' ''			h. ' ''
Beginning	7. 51. 20.		6 Digits	10. 47. 53.
1 Digit	7. 54. 35.	near Palus Paludis	5 Digits	10. 52. 5.
2 Digits	7. 57. 50.	to Mare Mortuum	4 Digits	10. 55. 30.	near Palus Marestis
3 Digits	8. 1. 5.	to Mare Rubrum	3 Digits	10. 59. 10.	near Palus Amaryllidis
4 Digits	8. 4. 25.	to L. Arabum	2 Digits	11. 2. 40.
5 Digits	8. 7. 50.	to L. Caspium	1 Digit	11. 5. 55.
6 Digits	8. 10. 33.		End	11. 9. 10.
7 Digits	8. 13. 58.	to M. Riphaeos
8 Digits	8. 17. 23.	to L. Maeotim
9 Digits	8. 20. 48.	to Pont. Euxinus
10 Digits	8. 24. 3.	to Palus Moeridis
11 Digits	8. 27. 38.
Immersion	8. 39. 53.

Emersion	10. 5. 53.
11 Digits	10. 18. 8.
10 Digits	10. 21. 43.
9 Digits	10. 25. 8.
8 Digits	10. 28. 33.
7 Digits	10. 31. 58.

The phases listed correspond to the visual coverage of the moon (digits) and the specific lunar surface features (maculae) entering or exiting the shadow.

General diagram,

designed according to the

measurement of the underlying

celestial projection.

North

South

Detail from General diagram: A central circle labeled "Earth's shadow" contains smaller circles representing the moon's position at "Immersion," "Middle," and "Emersion." Directions are labeled East on the left and West on the right.

Semidiameter of the Earth's shadow and the Moon
Linear scale showing divisions for 15, 30, 45, and 60 minutes of arc.

Hourly motion of the Moon from the Sun in orbit: 34' 4".